Yesterday evening Burj Dubai overtook Taipei 101 to become the world’s tallest tower, reaching 512.1 metres (1680 feet). It already had the most floors in the world when it reached 120 , but now has 141 and still has a long way to go.

Here’s a photograph I took this morning – unfortunately a hazy, dusty morning with a swirling wind causing dust to blow about.

Burj Dubai, which means Dubai Tower, is the centrepiece of a new US$20 billion city being built at frantic speed on the edge of the original city of Dubai.